Ok I have been able to resolve this problem by now. What led to resolution 1) I was trying to install Ubuntu 11.04 64 bit on a laptop using USB as an installation media. The USB was prepared by Unetbootin.
2) I formatted USB in another Ubuntu 11.04 system with Unetbootin and created that usb as an installation media for Ubuntu 10.4 64 bit edition. 3) Went to the laptop whose bugs I reported above and with this new USB (10.04) prepared by Unetbootin started installation of Ubuntu 10.04 got some error message on screen which I do not have but it said that last portion of hard disc seems to be problematic any how the installation after this was done by manually specifying the partitions and here on the install on this laptop in question went fine. 4) The same USB stick which I used as 10.04 media I formatted again and this time put 11.04 and connected it to laptop in question and this time the installation went on perfectly.No problems. This 11.04 was not alternate it was from live CD turned to USB. Currently I am able to work on this machine in question. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/865852 Title: ubiquity-dm crashed with ValueError in command(): invalid literal for int() with base 10: '' To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/865852/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs